Safety & Environment

Air Quality/Non-GHG Emissions

We predominantly use natural gas for our energy production; however, to maintain reliability during periods of gas system limitations, we retain a backup fuel source. While we had been using No. 6 oil as a backup fuel, we are converting the generating equipment at our steam and electric generating stations to be able to burn No. 4 oil instead – which is lighter and has a lower concentration of criteria pollutants. All Con Edison units will be converted to have the capability to burn this oil by the winter of 2019–2020 as currently required by Local Law 38, in keeping with New York City’s goal of reducing GHG emissions.